Pomeroy w



(No Model.)

P. W. POWER. INDUGTOR GENERATOR.

No. 596,032. Patented Dec. 21,1897.

WITNESSES: INVENTOR g 8% jbmemyfl fiwar I BY UNITED STATES PATENTOFFICE...

POHEROY WV. POWER, OF PITTSFIELD, MASSACHUSETTS, ASSIGNOR TO THE STANLEYELECTRIC MANUFACTURING COMPANY, OF SAME PLACE.

INDUCTOR-GENERATOR.

SPECIFICATION forming part of Letters Patent No. 596,032, dated December21, 1897.

Application filed September 10,1897. Serial No. 651,175. (No model.)

To all whom it may concern.-

Be it known that I, PoMnRoY W. POWER, a citizen of the United States,residing at Pittsfield, county of Berkshire, and State ofMassachusetts,have invented certain new and useful Improvements inInductor-Generators; of which the following is a full, clear, and exactdescription.

My invention relates to electric generators IO of the inductor type inwhich the induced coils are stationary, and has for its object to makelarge-sized inductor-generators readily accessible for inspection andrepair and to improve their construction generally.

As shown, it is embodied in a generator directly connected to the enginedriving it. Such generators are generallylarge-sized generators, havingmassive parts, and in constructing them it has been found difficult toprovide a means for obtaining access to the coils for inspection andrepairs. In smallersized generators of this type the armature can bemade separable, so that parts thereof can be Withdrawn or removed forthe purpose of obtaining access to the coils. 111 the larger sizes,particularly in the direct-connected machines, this cannot well be done.

My invention provides other means for obtaining this access, andapparatus embodying it is shown in the accompanying drawings, in which-Figure 1 shows a side elevation of a generator embodying myinvention,and Fig. 2 shows a detail of the construction. 3 5 A is the armature ofa generator of the inductor type, consisting of a hollow cylindricalcore with armature-coils on the interior thereof. As shown in thedrawings, there are two sets or crowns of armature-coils, between whichis a stationary energizing-coil B, supported midway between the twocrowns of armature-coils by the casting forming a portion of saidarmature.

C is the inductor mounted upon the shaft 45 S, which is directlyconnected to the engine M. This inductor C is divided in a planeperpendicular to the axis of the shaft S into two parts C C Each ofthese parts C C is separately mounted upon'the shaft S, so as to bemaintained thereon in a plane perpendicular thereto. The part C isdivided in a plane passing through the axis of the shaft S, the twoparts being bolted together at the hub and at the rim, as shown at d d.The part C is similarly divided and bolted together, as shown at e e.The two parts are set upon the shaft S' so that the planes of divisionparallel to the shaft S are at an angle to each other, as shown. Uponthe shaft S is a feather f,which coacts with grooves in the two parts CC and prevents said parts from turning upon the shaft when they are intheir normal position. Other means, however, for accomplishing this endcan be substituted. The shaft S is journaled in bearings H H,which areat a considerable distance from the ends of the inductor when the partsare in normal position, this distance being such that when one of theparts 0 C is moved toward the bearing nearest to it the corre- 7osponding crown of armature-coils will be entirely readily accessible.Each of the parts C C has a spider having large openings between thearms thereof. It will be seen from the above that while the inductor asa whole cannot be moved in either direction on account of the stationaryenergizing -coil 13 lying between its polar projections the two parts ofit, which are preferably bolted together by bolts 2' i, can bedisconnected from each other and by loosening the bolts at'd d and e 6can be loosened upon the shaft and readily moved laterally thereonindependently of each other toward the respective bearings, so that thecrowns of coils can be readily inspected and repaired, access being hadto them through the arms of the spider, after which the parts can beagain moved into position and bolted together and clamped upon theshaft.

The dotted lines in Fig. 1 indicate the positions of the two parts ofthe inductor when they are both withdrawn from their normal positions.

What I claim is 5 1. In an inductor-generator the combination of ashaft, an inductor carried thereby consisting of two parts separatelymounted thereon, the plane of division being at right angles to saidshaft, either of said parts being laterally movable on said shaft, andjournal-boxes supporting said shaft at a consid- IO nearest theretobeing substantially equal to the length of said induced coils,substantially as described.

Signed at Pittsfield, in the county of Berkshire and State ofMassachusetts, this 28th day of August, 1897.

POMEROY V. POXVER.

Witnesses:

M. LOUISE NICHOLS, HERBERT A. BULLARD.

